1 #include <linux/init.h>
2 #include <linux/console.h>
6 /* ----------------------------------------------------------------------------- */
7 /* trivial console driver -- simply dump everything to stderr */
10 * Don't register by default -- as this registeres very early in the
11 * boot process it becomes the default console. And as this isn't a
12 * real tty driver init isn't able to open /dev/console then.
14 * In most cases this isn't what you want ...
16 static int use_stderr_console = 0;
18 static void stderr_console_write(struct console *console, const char *string,
21 generic_write(2 /* stderr */, string, len, NULL);
24 static struct console stderr_console = {
26 .write = stderr_console_write,
27 .flags = CON_PRINTBUFFER,
30 static int __init stderr_console_init(void)
32 if (use_stderr_console)
33 register_console(&stderr_console);
36 console_initcall(stderr_console_init);
38 static int stderr_setup(char *str)
42 use_stderr_console = simple_strtoul(str,&str,0);
45 __setup("stderr=", stderr_setup);